Convertible billboard display



FIG. 1 shows a front view of the billboard display design of the presentinvention standing in its extended, vertically upright panelconfiguration, with a multi-page display item in position within thecentral panel.

FIG. 2 shows an isometric view of the billboard display design of thepresent invention in its folded, vertically standing, three dimensionaltriangular configuration, with a multi-page display item in positionwithin one of the panels.

FIG. 3 shows an isometric view of the billboard display design of thepresent invention in its folded, horizontally positioned, threedimensional, triangular configuration, with a multi-page display item inposition within one of the panels; and,

FIG. 4 shows an isometric view of the billboard display design of thepresent invention in its folded, horizontally positioned, threedimensional triangular configuration, with an alternate multi-pagedisplay item in position within one of the panels.

The ornamental design for a convertible billboard display, as shown anddescribed.